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Four green DDR5 RDIMM modules without heat spreaders

OWC

OWC 512GB (4x128GB) DDR5 5200 CL42 4Rx4 ECC Registered RDIMM server RAM

SKU CH-3W66-YG36X

Four 128 GB DDR5 5200 CL42 ECC registered RDIMMs deliver 512 GB of error-correcting server memory at 1.1 V

  • Capacity512GB (4 x 128GB)
  • Type288-Pin DDR5 ECC RDIMM
  • SpeedDDR5 5200 (PC5 41600)
  • CAS LatencyCL42
  • Voltage1.1V
  • ECCYes

Capacity 512GB (4 x 128GB)

Ver 4 configuraciones más

Rank 4Rx4

  • 512 GB total capacity from four 128 GB modules
  • DDR5 5200 speed with CL42 latency for server workloads
  • ECC registered design detects and corrects memory errors
  • JEDEC-standard 1.1 V operation reduces power draw
  • 288-pin RDIMM form factor fits compatible workstations and servers

Server-grade DDR5 kit for workstations and NAS

This OWC kit delivers 512GB of DDR5 5200 registered ECC memory across four 128GB modules. The 288-pin RDIMMs operate at 1.1V with CL42 latency and 4Rx4 organisation. It targets administrators upgrading select workstations, NAS systems or network switches that require registered error-correcting modules.

Replaces unbuffered or lower-capacity registered

The jump is worthwhile when your platform demands registered ECC memory and needs the density of 128GB modules to reach 512GB in four slots. Systems limited to unbuffered ECC or load-reduced DIMMs cannot use this kit. The dual-channel kit layout suits boards that populate two channels with two modules each.

Verify registered ECC support

Confirm the motherboard or server manual lists DDR5 5200 registered RDIMMs with 4Rx4 organisation as compatible. Check that four 288-pin slots are available and that the BIOS accepts 128GB density per module. Mixing with unbuffered or load-reduced memory is not supported.

Puntos fuertes

  • 512 GB total capacity from four 128 GB modules
  • DDR5 5200 speed with CL42 latency for server workloads
  • ECC registered design detects and corrects memory errors
  • JEDEC-standard 1.1 V operation reduces power draw
  • 288-pin RDIMM form factor fits compatible workstations and servers

Especificaciones

BrandOWC
Part Number5R2D54R4512S
Capacity512GB (4 x 128GB)
Type288-Pin DDR5 ECC RDIMM
SpeedDDR5 5200 (PC5 41600)
CAS LatencyCL42
Voltage1.1V
ECCYes
Buffered/RegisteredRegistered
Rank4Rx4
Multi-channel KitDual Channel Kit
Heat SpreaderNo

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Preguntas sobre este artículo

Does the 288-pin DDR5 RDIMM form factor fit standard server DIMM slots?

Yes, each 128GB module uses the 288-pin DDR5 RDIMM form factor designed for server and workstation DIMM slots.

What is the correct seating procedure for these registered ECC modules, and what step is often missed?

Align the notch with the slot key, press firmly until both retention clips click, then verify the motherboard recognises all 512GB at 5200 MT/s.

When should the 4Rx4 registered DIMMs be replaced or checked for errors?

Run a full memory test at install; replace any module that logs correctable ECC errors consistently or fails the test.

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